Takachiho Sangyo VerifierG2 MPL-H10S Operation Manual

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1. Safety

2. Introduction

3. Composition

4. Specification

5. Description of parts & basic operation

6. Warning Message

7. Operation of Transmitter (TX)

8. Operation of Receiver (RX)

Precautions and applications

(At the locating site)

Table of Contents

3-1. Main equipment & standard accessories 3-2. Optional equipment

5-1. Transmitter 5-2. Receiver

7-1. Direct connection mode 7-2. External coil mode 7-3. Indirect (Inductive) mode

8-1. Null mode 8-2. Peak mode 8-3. Depth measurement 8-4. Logging data 8-5. Current index (Current measurement) 8-6. Passive mode 8-7. Building wiring 8-8. Probe for non-metallic pipe

4 4 4

7 7 9

13 14 17 19

21 21 22 23 24 25 27 29 30 32

1. SAFETY

Always locate with proper respect and caution. Equipment misuse or carelessness can result in serious injury or damage to property. Always follow safety rules.

HAZARD ALERT INFORMATION

BE AWARE OF SAFETY INFORMATION

This is a safety-alert sign. This is placed in the manual and on your equipment to alert you to the potential for bodily injury or death.

SIGNAL WORDS

The safety-alert icon is used with the following signal word :

DANGER, WARNING, AND CAUTION. When you see these

words in the manual or on decals on your equipment, carefully read

and follow all instructions. Watch for these words and learn their

meanings.

DANGER – Imminent hazards which, if not avoided, will result in

death or serious injury.

WARNING – Potentially hazardous situation which, if not avoided,

could result in death or serious injury.

CAUTION – Potentially hazardous situation which, if not avoided,

may result in minor personal injury or property damage.

DANGER

WARNING

CAUTION

OPERATOR PREPARATIONS

Important : Read and understand this manual before using the Verifier Locator. Successful use of the Verifier Locator depends on good locating skills and correct understanding of receiver response.

GENERAL SAFETY

DANGER : Do not attempt to connect to Live Power without proper protective Equipment

and Training.

DAGER ELECTRIC SHOCK : Death or serious injury will result NOTICE : Do not apply more than 250 volts across clips. More than 250 volts will damage transmitter.

- 1 -

DANGER : High Voltage. Cutting high voltage cable can cause DEATH or ELECTROCUTION. Expose lines by a non-destructive means before excavating.

DANGER : Traffic Hazards can result in death or serious injury. Avoid moving Vehicles. Wear high-visibility clothing.

WARNING : Buried lines. Always confirm your depth estimate by exposing target line by a non-destructive means.

WARNING : Jobsite Hazards can cause DEATH or SERIOUS INJURY. Wear proper safety equipment.

NOTICE : Non-metallic lines can be accurately detected only by using a probe. Remember this before searching and attempting any excavation activity.

NOTICE : Use only alkaline batteries in the Verifier receiver and transmitter. Batteries contain acid, which may leak if the batteries are allowed to remain in The equipment when low or completely discharged. This acid can cause Equipment damage.

- 2 -

2. Introduction

Magnetic field

This equipment is the high performance digital measurement equipment to measure the location and the depth of buried cable / metal pipe from the ground. By adopting the most recent microcomputer technology, the digital correction of the measurement data realizes stable and high precious measurement.

- Principle measurement method -

When current flows through a buried cable/pipe, an alternating magnetic field is generated around it. Location, depth, and current value of the buried pipe can be measured using the Receiver at the surface of the ground.

Signal

Pipe / Cable

Signal

Pipe / Cable

- Feature -

· Adopting differential coil method makes the Receiver to receive the signal from direct below the Receiver by cutting noise from surrounding area.

· Two kinds of the location measurement mode

*Peak mode: The method to detect maximum sensitivity. High precision.( having error detection protection function)

*Null mode: The method to detect minimum sensitivity point being indicated with arrow. (having error detection protection

function)

No switch operation needed. Applied to at deep depth with stable location work.

· Two kinds of the depth measurement mode

*0-5m (16ft) mode : Measurement of deep depth with high precision is possible at indirect method, the end of cable, and

jointing points.

*0-10m (30ft) mode : Stable measurement is possible at deep depth, near guardrail, or fence.

Do not use this mode with inductive mode.

· The Receiver itself can measure commercial frequency ( 50 / 60Hz, 100 / 120Hz) and Radio ( from 9k to 33kHz) without the use

of the Transmitter.

· The best-suited frequency is automatically selected at radio (9k - 33kHz) with search function.

· The measured data is stored (max. 400 data ) with one-touch operation.

The data can be transmitted to a PC as standard function.

· Broadcasting of four frequencies (512Hz, 9.5kHz, 38kHz, 80kHz) as usage meets various buried pipe.

· A Probe as an option can be used to detect nonmetal pipe.

*The model figure of the differential coil. The differential coil connected two coils for each other reverse.

- 3 -

3. Composition

3-1. Main equipment & standard accessories

Description Q’ty Remark

Transmitter Unit 1pc Used as a signal generator.

Receiver Unit 1pc Digital locator

Accessories

Connecting cable with a reel 1pc Used for Direct connection mode 5m/16.5ft.

Ground rod 1pc Used for Direct connection mode.

Type “D “Alkaline battery 8pcs LR20/13A For Transmitter

Type “AA” Alkaline battery 8pcs IEC LR6/NEDA15A For Receiver

Soft carrying case 1pc

Operating manual 1pc English version

Data viewer software 1pc CD, Operating manual

3-2. Optional equipment

Description Q’ty Remark

38kHz External coil 1pc Used for External coil mode.

9.5kHz External coil 1pc Used for External coil mode.

80kHz External coil 1pc Used for External coil mode.

Sewer Probe 1pc Used for non-metallic pipe.

Mini probe 1pc For 25mm / 1" fiber optic duct.

RS232C Cable 1pc

Standard probe for 75mm/ 3" & 100mm/ 4" pipe. Frequency: 38kHz or 512Hz

For tracking non-directional drilling tools. Frequency: 38kHz or 512Hz

Earphone 1pc Used in a noisy area.

- 4 -

4. Specification

Transmitter(TX)

Output frequencies 38kHz

9.5kHz 80kHz 512Hz Dual Output power 5 watts maximum / 80kHz: 1 watts maximum Operating Modes Direct connection mode, Inductive mode External coil mode (optional ) Battery type Eight Alkaline LR20 “D” Battery Life

Battery Status Low battery indication & Press key readout Visual Indication LCD : Bar graph & Digital number, includes Backlight Audio Indication Internal Speaker : Alarm, Beeping sounds Measuring function Output Current : 0 to 300mA Line Voltage : 0 to 250V Output protection AC 250V ( 512Hz: Output is cut off automatically) Operating Temperature Dimensions Weight 3.7kg/ 8.2lbs approx. including eight batteries

:38kHz :9.5kHz :78.125kHz ±0.02% :512Hz :9.5kHz /38kHz ±0.02%

Direct mode : 50 hours (Output 4mA , 20 Inductive mode : 20 hours (Output 50% , 20°C / 68°F) Full Power(5W) : 10 hours (20°C / 68°F)

-20°C to 50°C / -4°F to 122°F 314 ´ 110mm (10.8” ´ 12.4” ´ 4.3”)

275

0.02% (Standard frequency)

0.02%

C / 68°F)

- 5 -

Receiver(RX)

Active Frequencies 38kHz

9.5kHz 80kHz 512Hz Passive Radio Radio : 9k to 33kHz Passive Power 50 / 60Hz : 5th harmonic ( 50 Hz or 60Hz user selectable) 100 /120Hz : 3ed harmonic ( 100 Hz or 120Hz user selectable) Battery type Eight Alkaline LR6 “AA” Battery Life Battery Status Continuous indication Power save function Automatically power off after 5minutes of inactivity Visual Indication LCD : Bar graph , Digital number & character, include Backlight Depth Range Line : 0 to 5m /16ft. ( 0-5m / 0-16ft. mode)

Depth Readout Unit Meter / ft. & inch Depth Accuracy*1

Current value Current value flowing on the conductor is displayed for line identity in

Audio output Internal Speaker (200 to 5kHz) , Earphone ( optional ) Data logging Memorized 400 points of the depth / current measurement data. Interface D-sub 9-pin connector (RS-232C) Operating Temperature Dimensions Weight 2.1kg/ 4.7lbs approx. including eight batteries

Note: *1 Locators are tested in the model field conditions with no adjacent signals. Always excavate the line with non-destructive means before digging.

*2 Optional cable is necessary to read the logging data.

20 hours (20

0 to 10m /30ft. (0-10m / 0-30ft. mode) Probe : 0 to 10m /30ft.

2.0m / 6.5ft. :

3.0m / 10ft. : ±5%

5.0m / 16.5ft. : ±10%

milli-Amps.

-20°C to 50°C / -4°F to 122°F 680

: 38kHz : 9.5kHz : 78.125kHz ±2% : 512Hz

C / 68°F)

140 ´ 290mm ( 26.8” ´ 5.5” ´ 11.4”)

2.5%

- 6 -

Selects operating frequency.

Sound On

/ Off

Frequency / Output Power,/ Battery status

5. Description of parts & basic operation

Battery indication

5-1. Transmitter

LCD Window

Touch pad

1) LCD window

Backlight On / Off

2) Key function

POWER

ADJUST

FREQUENCY

8-pin connector

Battery compartment

Bar-graph (Output power / Battery status)

Power ON / OFF

*Each time Transmitter is turned on the batteries are automatically checked.

Press ADJUST key after hook up to automatically adjust power.

80kHz

38kHz

9.5kHz

9-38kHz

*1 9-38kHz : Broadcasts both frequencies simultaneously in direct mode only.

*2 512Hz : Direct mode only

512Hz

MODE

Battery indication

*The symbol appears when battery is low.

Increase Output power

Reduce Output power

- 7 -

Press and hold

& for 2 seconds.

MODE

Light On/Off set

Sound set

: Press

Light On

: Press

: SOUND ON

: TRANSMITTER SOUND OFF, FUNCTION SOUND ON

: SOUND OFF.

key while holding

Note : The last setting is memorized after the unit is Turned OFF

Transmitter sound :

Beep…(15sec.)…..Beep…(15sec)…Beep

3) 8-pin connector

The Direct connection cord or the External coil cord are plugged into the 8-pin connector.

Put the rubber protector on

when not in use.

4) Battery compartment

Replace all batteries when there is a low battery condition.

Use 8 3 1.5V alkaline type D (LR20 / 13A) batteries.

ALWAYS CHECK THE BATTERY POLARITY BEFORE

CLOSING THE COMPARTMENT

Open

(MODE).

Light Off

(MODE).

- 8 -

5-2. Receiver

Power ON / OFF

Adjusts Signal sensi

tivity for PEAK MODE.

Depth measurement

Receiving sensitivit

20%

30%

Power Peak / Null Mode

Battery compartment

1)Key function

Power

Measuring Mode

RS232C Connector

Earphone plug

Signal input terminal (8-pin connector)

*Power save function: Automatically power off after 5 minutes of inactivity.

Gain Adjust Depth / Current Frequency

Bar-graph

Receiving sensitivity

Frequency

Battery indication

Gain

Adjust

Depth /

Current

Peak / Null

Press GAIN key

100% - 100%

30%

Peak value spot = Top of the line

70%

50% 50%

Magnetic field

Press GAIN key

Note: 100% is not the maximum peak value. When 100% appears, press Gain key again

until a new sharp peak value is obtained, that is not 100%.

: Press DEPTH key at the peak value spot.

Selects locating mode.

Peak Mode

Depth

Current index : Details page 25

Note: Current index is not displayed if probe is used.

Peak mode :Maximum sensitivity is the point directly

above the object line.

Null mode : Minimum sensitivity is the point directly above

Null Mode

the object line. The buried object line is

indicated with arrow.

- 9 -

Various settings

Frequency

Mode

Selects operating frequency.

80kHz

38kHz

9.5kHz 512Hz

* 50Hz * 100Hz

60Hz 120Hz

RAD

Selects Power frequency 50Hz / 60Hz

*RAD : Radio (passive 9kHz to 33kHz)

Power on while holding Frequency key.

POW 50Hz or POW 60Hz screen is indicated in 1 seconds.

Press Frequency , and select 50Hz or 60Hz .

At the same time, 100/120Hz is selected. ( 50Hz Þ 100Hz / 60Hz Þ 120Hz )

The setting is memorized with Power off.

1. Selects sound and backlight options. By pressing Mode , move on.

Press Gain : Select speaker sound On / Off.

S-ON : SOUND ON

S-OF : SOUND OFF

Press Depth : Select backlight On / Off.

L-ON : LIGHT ON L-OF : LIGHT OFF

2. Selects Depth function. By pressing Mode , move on.

Press Depth : Select depth function 0-5m / 0-10m ( 0-16ft / 0-30ft.).

*0-5m / 16ft : Applied for Inductive mode.

Detecting near t he end of the pipe.

Depth measurement range 0 to 5m(16ft).

CAUTION

When applying Inductive mode, select 0-5m /16ft . Depth measurement

error gets bigger at near the Transmitter when 0-10m/30ft is applied.

*0-10m / 30ft : Applied for the depth deeper than

5m(16ft.) , near guardrail or metal fence.

The measurement range of depth 0 to 10m(30ft).

3. Selects PROBE detection. By pressing Mode , return to measurement.

When Sewer or Mini Probe is employed for the detection of Non-metallic pipe or Boring device. Only 38kHz and 512Hz are used for Probe.

Press Frequency : Select detecting function .

PROB ON .

Probe detection

PROB OFF .

Cable / Pipe detection

*The last setting is saved.

- 10 -

Mode

Setting the Time and Date

a)Power on while holding Mode , wait for clock display appears.

The year will flash.

Press Gain to advance the year or Depth to decrement the year.

b) Press Mode , the month will flash.

Press Gain to advance the month or Depth to decrement the month.

c)Do same as above to set Day - -> Hour - - > Minute.

When measurement starts, setting is completed.

2) Battery compartment

Replace all batteries when there is a low battery condition.

Use eight 1.5V alkaline type AA (IEC LR6/NEDA15A).

Open

ALWAYS CHECK THE BATTERY POLARITY

BEFORE CLOSING THE COMPARTMENT

3)RS2332C connector

A RS232C connector is provided for serial communications to the personal computer.

*Interface cable is supplied as option.

*Specification of interface cable :

9-pin, D-SUB, straight connection

or same specification RS232C-USB conversion cable

Interface cable is available at market.

4)Earphone plug

Earphone can be used in a noisy area.

Supplied as an option.

5) 8-pin connector

Used with External Coil (9.5kHz or 38kHz) to find wiring

systems in a building or overhead telephone cables.

External coils are supplied as options.

Battery 100％

Battery 0％

When the batteries tray is stored, check the ARROW should point up.

Earphone plug

8-pin connector

- 11 -

6. Warning Message

*Messages during your search procedure :

OVER

LOW

Receiving signal is too high.

a) Indirect mode : Transmitter and Receiver are too close each other. b) Other cases : Reduce output of the Transmitter.

Receiving signal is too small or not present.

a) In the case of direct, induction or coil

- Increase output of the Transmitter.

- Check batteries, connecting parts and frequency of the Transmitter.

- Check signal loop at the Transmitter.

b) In the case of Radio / Power mode

- There are no conductors to radiate magnetic fields. There is no pipe or cable

- There is a conductor, but the signal is too low to adhere to the line. Use Transmitter to search for the line.

*Messages on location :

PUSH GAIN

Press GAIN key. Þ Normally this is your object line.

Reduces or increases signal strength.

*Messages on Depth measurement :

ERR

16. --ft/in.

5. --m

30. --ft/in.

10. --m

a) Received signal level is unusual, or received signal is too small. b) Located point is not right above the object line. c) Metallic fences, metallic structures or cars are interfering with the depth measurement. Find area with less interference. d) The Line is disconnected.

Indicating that the depth measured is deeper than 5 m / 16 ft.

In Line detection (0-5m / 0-16ft.) mode, locator cannot read below this depth

Indicating that the depth measured is deeper than 10m / 30ft.

In Line detection (0-10m / 0-30t.) or Probe detection mode, locator cannot read below this depth.

- 12 -

Mode of Detection

Purpose of usage

7. Operation of Transmitter (TX)

Direct Connection Mode

Signal

External Coil Mode

Indirect (Inductive) Mode

Used with External Coil to find wiring systems in the building.

Building Wiring

Signal

This is the best way to inject AC current direct to the target line. Signal (AC current) will return to the Transmitter through the ground.

Black clip

Ground stake

Effective for detecting the target line in congested areas.

Advantage for live power or cable, that is not accessible for Direct connection. The clamp is waterproof and will attach on any size cable. No need for a ground stake. Effective for detecting the target line in congested area. The target line must be grounded.

If there is no direct access to the target line, use this method. The Transmitter can induce its signal to the buried line. Place the Transmitter in an upright position and at right angle to the buried line. Minimum TX to RX distanceÞ30 ft / 10 m

Note: When using the indirect mode, set the depth mode of the receiver

to 0-5m (0-16ft.) .Depth measurement error gets bigger at near the Transmitter when 0-10m (30ft) is applied.

TX's circuit is protected* up to 250V at 50 / 60 Hz.

*512Hz output is cut off automatically.

Transmitter

Ground

Red clip

Target line

Probe Mode

Used for tracing small diameter drains or plastic pipes. Also, pinpoint a drain blockage or collapse. Can trace nondirectional boring tools. The Probe is available in two sizes, 20mm/ 0.79" and 50mm / 2" diameter.

- 13 -

7-1. Direct connection mode

When the clips are connected to the transmitter, Direct Connect

ion mode automatically selected.

Frequency setting

Connect the cable clips to the target line and ground stake.

Transmitter

length of cable from the reel.

Note:

Note: Clean off if the connected part is rusted or

A specific route can be detected in Direct Connection mode. Use two 5m/16.5 ft connecting cable with a reel provided in the carrying case as one of the standard accessories.

This Groove up

Before connecting, pull out proper

Display of the Direct mode

Press FREQUENCY key

Red clip

Metal pipe

painted to ensure a good electrical connection.

Line

90°

*Set a receiving frequency on the Receiver the same as

the transmitter.

Receiver

Press Frequency key

Black clip

Ground stake

Check the grounded point. Find the best place to ground to have a GOOD SIGNAL LOOP indication.

Place the Earth/Ground as far as possible and at right angle to the object line.

Keep Receiver at least 5m/16ft. away from the signal connection point as illustrated

- 14 -

Check the signal loop

Adjust output power

Check the voltage when connecting clip to Power line.

Note:

AC VOLTAGE

DANGER

When signal loop is acceptable, Beeping sound is emitted.

P P P P ….

Beeping sound is emitted after output is adjusted when the resistance value of the cable is high.

Automatically adjust power

Press ADJUST key.

*When “GOOD SIGNAL LOOP” isn't indicated after pressing ADJUST.

Þ Clean off the connected part if rusted or painted or move ground stake.

When output is adjusted

*When the Receiver indicates “ OVER” , Press

*W hen locating a long-distance line or deeper depth than 3m / 16ft., Press

key. Þ Reduce output.

*Transmitter will beep for 30 seconds.

*Sound stops when Press ADJUST key.

*Sound setting is [b-0].ÞBeeping sound off.

GOOD

SIGNAL LOOP

key. Þ Increase output.

- When voltage is greater than 20 volts, voltage is displayed.

- When voltage is greater than 25 volts, Alarm sounds.

Note: 512Hz output is cut off automatically.

ELECTRIC SHOCK

Death or serious injury will result. 250 Volts maximum across

clips. Use protective equipment.

PEEEEEE!!!!

*Alarm stops when Press ADJUST key.

*Sound setting is [b-0]. Þ Alarm off.

- 15 -

Direct Connection mode

Use the Receiver 5m / 16ft. away from the

Applications (1)

Applications (2)

DAMAGE TO APPLIANCES, FIRE OR EXPLOSIONS.

WARNING

No need of ground at the ending point

transmitter and clips.

5m / 16ft. away

Power cable:

Disconnect common ground lead and

connect the Red clip to Power line ground

lead. Then locate Power line

Telephone cable:

Disconnect Telephone Ground lead and connect the Red clip to it to locate Telephone line.

Remember to correctly reconnect common grounds for telephone, CATV and Electric Lines. Check Local codes for proper grounding procedure. IMPROPER GROUNDING MAY CAUSE

Telephone cable

Power cable

House meter

CATV cable:

Disconnect CATV's ground lead and connect the Red clip to it to locate CATV line.

Common ground lead

CATV cable

If the dead cable is the object, connect the red alligator clip of the connecting cable to either the aluminum-sheath or a bundle of the copper cores directly.

Short distance dead cable

Long distance dead cable

The ground should be provide

the end of the line

- 16 -

7-2. External coil mode

When the External coil is connected to the transmitter, External coil mode is automatically selected.

Frequency setting

Adjust output power

Connect the External coil to the target line.

Note :Make sure it is attached parallel and in line with the cable as illustrated.

power

increase output

Use 9.5 kHz, 38 kHz or 80kHz External coil supplied as an option. Use this mode if object is accessible. An induced current, generated by the coil in the External Coil attachment, is applied directly to the exposed part of the cable / pipe to be located.

Applicable to : Live Telecom cable or Live Power cable. Fiber optic cable having an aluminum-sheath.

This Groove is up

External Coil mode indication

External coil

Frequency is selected based on coil used with the External coil automatically.

When 38kHz coil is connected

Reduce output

power

Electromagnetic field

Telecom / Power cable (Diameter up to 10cm / 4”)

Transmitting coil

*Set a receiving frequency on the Receiver the same

as the transmitter.

Press Frequency key

Indicate output power with the bar graph and the numerical value when pressing / key.

*The jaws do not have to be closed around the cable.

(This coil method is different from the conventional clamp

that must have jaws perfectly closed. Different size clamps

are not needed. The Verifier coil method uses the indirect /

Inductive principle.)

- 17 -

External coil mode

Make sure that the cable is grounded at both ends.

Note : Do not attach to the metal pipe or metal riser above the ground.

Note :

Use the Receiver more than 5 m/16 ft away from the coil clamp

Note : Fresh water has no effect Locating the cable or detecting depth.

will not trace.

Do not put the coil close to or around the ending or middle ground.

Signal to ground

Intermediate ground

* If the cable is submerged in water, you can use the coil attachment in the water.

The coil attachment is WATERPROOF.

Attach the coil clamp to the cable/PVC part.

Brash or salt water will effect locating.

PVC Pipe

Metal Pipe

Cable

when starting the location work.

5m / 16 ft. away

- 18 -

7-3. Indirect (Inductive) mode

When nothing is connected to the transmitter, Indirect mode automatically selected.

Frequency setting

Place the transmitter over or near the area to be located.

tic

Transmitter

If there is not direct access to the object line, the Transmitter can apply AC current ( signal ) to the line directly below the Transmitter.

Note: When using the indirect mode, set the depth mode of the receiver to 0-5m (0-16ft.) .

Electromagne

field

Press FREQUENCY key

POWER

*Set a receiving frequency on the Receiver the same

as the transmitter.

Press Frequency key

Indirect mode indication

Do not place the Transmitter on a

manhole cover or other steel covering.

*Place the Transmitter in an upright position at a 90° angle to the object line as illustrated.

Object line

Top view

*Location the area of a manhole, place the Transmitter on the side of the manhole you wish to locate.

Transmitter

signal

manhole

- 19 -

Adjust output power

Note :

Use Receiver

more than

10m / 30ft. away from Transmitter

Receiving

Indirect mode

Reduce power

Increase power

Indicate output power with the bar graph and the numerical value when pressing / key.

*Standard of adjustment.

- When depth is less than 0.6m / 2ft. Þ 50% ~ 60%

- When depth is more than 0.6m / 2ft., less than 1.5m / 5ft..Þ 70 % ~ 80%

- When depth is more than 1.5m / 5ft..Þ 90 % ~ 100%

Note: If output is adjusted to 100%, you can usually locate in any place. But the battery of the transmitter is redused as output increases.

when starting the location work or an "Air Coupling" between the Transmitter and Receiver can exist.

More than 10 m / 30ft. away

Note: Detection of the Multiple Telephone Cable Pipes (Metal Ducts) in Indirect mode

Don't assume that the peak point of the signal strength obtained is the center of the multiple lines. It is the central point of the electromagnetic field applied by the Transmitter.

sensitivity

- 20 -

Start

ing Null Mode

To find the direction of the object line,

To find the position of the object line,

Move the Receiver from side to side to determine

Peak = Direction of

8. Operation of Receiver (RX)

230

310

450

When Receiver is passed the top of the line,

550

200

150

Number of receiving

Move in the direction of

the arrow.

8-1. Null Mode

Press Peak / Null key.

Null Mode

level is blinked.

the exact position.

Pinpoint the position.

Is displayed

The direction of the object line.

Receiving level

Same as Depth distance

approximately

Do not swing like this.

The arrows are indicated on the both side.

rotate the receiver and stop at the position of the maximum receiving level.

Receiving level

the object line

It is ghost signal if the arrow is reversed. when number is blinked

Same as Depth distance

approximately

Object Line

Beep sound is emitted.

PE!

Object Line

- 21 -

Start

ing Peak Mode

To find the direction of the object line,

When

“

PUSH GAIN

” appears, pre

ss Gain

Adjust

key until maximum peak value (not 100%)

To find the position of the object line,

Peak = Direction of

30%

20%

100% 100%

70%

30% 30%

- - -

8-2. Peak Mode

Press Peak / Null key.

Peak Mode

is displayed.

30%

Number of receiving level is not indicated.

Receiving level

30%

When 100% appears…

When PUSH GAIN

appears…

Same as Depth distance

approximately

rotate the receiver over the object line and stop at the position of the maximum peak value.

Is displayed

the object line

70%

50%

Press Gain Adjust key.

70% appears as an initial receiving level.

Note: 100% is not the maximum peak value.

Maximum (peak) value, the precise position and direction, are obtained

when the Receiver blade is the top of the object line

Number of receiving level is not indicated.

Same as Depth distance

approximately

Object Line

70%

50%

- 22 -

8-3. Depth measurement

90°

Axis

Signal is too small / too high.

*Warning message

Data

Once the precise location of the object line has been determined, the Depth key is pressed to display the distance from the Receiver's blade to the object line. Calculations are indicated on the digital display.

Note: Depth reading is a calculation of received signal strength.

Hold the Receiver vertically, place the blade on the

ground and do not move it during the depth

measurement.

Blade

Center

Depth

Object line

Press Depth / Current key.

Normal calculation

Depth

Indicate depth mode

Current index

Data Logging

Press Mode key.

Press Gain Adjust key.

Memorized Depth, Current index, Date, time and frequency.

number

Start Tracing

Touch the ground with the Receiver's blade at an

upright position.

If the ground slopes, keep

the Receiver at right angles

to the axis of the globe.

Deeper than 5m / 16ft.

ERR appears….

*Receiving signal is not strong enough.

- Possibly this is the wrong line.

- Move the Receiver again from side to side to find the exact position. *Gas pipe Þ if not well jointed

- injected signal does not travel well

- receiving signal is too small

- 23 -

8-4. Logging Data

*Cable for PC communication

Indicate the Logging data

1) Press Mode key.

2) Press and hold Peak / Null .

for one second.

3) Press Gain Adjust - Increase data number. Press Depth / Current - Decrease data number

4) Two seconds after data is displayed., its stored date and hour is displayed automatically in order.

Delete Logging data

Press and hold Frequency .

key for two seconds..

Speaker and backlight

setting screen appears.

Depth Data

Data number

CAUTION : If delete operation is done, all data is gone.

Takes several seconds

delete data.

The data recorded at

the end is indicated.

Return to locator function

Download data to the PC

Connect the cable to the

RS232C connector on the

Receiver.

is supplied as option.

Press Mode key.

Return to locator function

Press Mode key.

Refer Data viewer soft manual about operation of

data communication with a PC.

Data communication screen appears.

- 24 -

8-5. Current index (Current measurement)

What

’

s the Current index?

When

sudden

ly current drop…

The Current value is not affected by the depth

Each time a Depth calculation is taken, a Current Index simultaneously appears on the display.

*Current index Current Value (mA)

Depth : 1.90m

Current Index :200

Depth : 1.75m

Current Index :150

Depth : 2.00m

Current Index :100

Current Value =1.5mA

Current Value =2.0mA

*Normal tracing ® Current value progress down.

*The Current gradually reduces as the distance from the Transmitter increases.

The current leaks to a ground.

1.00m / 200

1.00m / 50

ERR : The line is disconnected.

Or, the current does not travel after the joint of the gas line / water line due to the non-conductivity.

Current Value =1.0mA

1.00m / 10

Disconnect

Leak/ Fault

1.80m 70

0.7mA

ＥＲＲ

The current value is not affected by the depth,

but it is affected by the detection methods, the

frequencies and power level.

- 25 -

1.00m / 200

1.30m / 200

30cm

The Current index helps to confirm the line's identity.

If an adjacent line is running parallel with the object line.

If two

lines are crossing:

Locating T connection

Current index:260

0.5m

A with a 260 current index

Current index:

150

Current index:

100

Current index:200

Current index:50

Receiving

sensitivity

Current index:70

1.5m

The line with the highest current index is the object line into which the signal is being broadcast.

ÞLine A with a 200 current index is the trace object.

1.5m

Line: A

Depth :1.50m

Line: A

Depth :0.50m

0.5m

Line: B

Depth :0.50m

Depth :1.50m

Line: A

Lineis the object line. Even though signal is smaller.

Þ Splicing/jointing points of Power cable, Telephone cable, Gas pipe, Water pipe, or Sewer pipe.

Main line-A with a 200 current index

Line-B : Index value 150 Þ Main line

Line-C : Index value 50 Þ Branch line

- 26 -

Depth :1.00m

Depth :1.50m

8-6. Passive mode

cable.

The Power and Radio passive modes of the Receiver are used to search an area for unknown power cables and other utility lines, without the use of the Transmitter.

Frequency setting

Press Frequency key.

How to choose 50/ 60Hz

Power on while holding Frequency key. POW 50Hz or POW 60Hz screen is indicated in 1 seconds.

Press Frequency , and select 50Hz or 60Hz .

At the same time, 100/120Hz is selected. ( 50Hz Þ 100Hz / 60Hz Þ 120Hz )

The setting is memorized with Power off.

Auto search function of Magnetic field in nature （Radio wave）

When applying Radio wave (RAD) detection, the most sensitive frequency is selected with auto search function.

Search all frequencies

Set frequency to RAD , Press and hold Gain Adjust for one second. And then, search starts.

Press Gain Adjust key.

Search frequencies in several bands

Press Gain Adjust during search, Search stops. Resume search, the search starts from the halted frequency.

Frequency

9.1kHz

Search starts

Above mentioned example shows the first search detects the most sensitive frequency from 9.1k to 17kHz. And then search is

halted. Then, search resumes. The second search detects the most sensitivity frequency from 17k to 32.8kHz

Applying this function, several different kind of cables can be detected in several stages.

Power mode: Power mode detects 50/60 Hz or 100/120Hz frequency radiated by the live power

Radio mode: It locates buried utility lines as they reradiate very low frequency,

Search start

Frequency

17.0kHz

Search stops

Frequency

17.0kHz

Resume search

Search end.

Frequency

32.8kHz

Search stops

Select 60Hz / 120Hz .

50Hz / 100Hz .

Select RAD .

Automatically selected the

most sensitive frequency

Frequency

9.1kHz

Search starts

- 27 -

Decide the place of the starting point. Press Gain , locate that circumference.

WARNING

Streetlight

When street light is

lighting, 50/60Hz is

available.

Close the Receiver to

the lead-up cable.

RAD auto search is

effective.

Power /

telephone

Trace a line from the starting point to have sensitivity.

Depth measurement Press DEPTH key after pinpointing the location.

manhole

Press Depth / Current key.

Accuracy of the depth measurement using the passive modes is unreliable. Always expose the utility lines by carefully hand digging before excavation.

- 28 -

8-7. Building wiring

Receiver

Transmitter

Tracing the wire

chment picks up the signal and the current

Note: The depth is not displayed.

DANGER

A stiff piece

It is possible to detect the wiring in a building by broadcasting the Transmitter signal into the wiring. For searching, use the External coil, supplied as an option, which is connected to the Signal input terminal (8-pin connector ) of the Receiver.

Connect the External coil's plug to the Signal Input Terminal (8-pin connector) on the Receiver

Connect the External coil's plug

Set the frequency same as the Receiver.

Press FREQUENCY. key.

The clips are connected to the transmitter.

Connect the red clip to the

conductor on the plug.

Press Frequency. key.

‘＋’ appears

Set a frequency on the receiver same as the External coil.

Always check that the Transmitter, the

Receiver and the External coil are at the

same frequency.

Neutral

Connect the Black clip

to a ground stake.

of wire

ELECTRIC SHOCK

Death or serious injury will result. 250 Volts maximum across clips.

Hold the External coil near the wall as illustrated.

The coil in the External coil atta

strength (=receiving sensitivity level) is displayed on the LCD.

Receiving Sensitivity

Coil needs to be perpendicular to wire

- 29 -

8-8. Probe for non-metallic pipe

Battery check

Replacement of batteries

Output setting

Mini-Probe

(+) (-)

A Probe, supplied as optional equipment, is a small waterproof transmitter emitting a signal that is traced by the Receiver.

The Probe can only be used in the non-metallic pipe.

Note : The metal pipe conceals a signal so that the Receiver cannot detect the signal. Use Direct connection mode.

a) Set the rotary select switch to BATT. b) Check if the green lamp is ON. c) If the lamp is OFF, replace all batteries with new ones.

a) Unscrew the top cover and open the battery compartment. b) Four 1.5V AA (LR-6, NEDA15A) batteries are placed in series. c) The proper polarities for the batteries are shown on the battery holder.

a) OUTPUT LOW: 0.7 ft to 5.8 ft ( 0.2 m to 1.8 m ) Þ less than 4ft / 1 m b) OUTPUT HIGH: 5.9 ft to 16 ft ( 1.8 m to 5 m )Þ more than 4 ft / 1 m

Attach the Sewer probe to the rodding tool and insert the probe into the pipe.

Attach the Sewer probe to the Pulling eye with the pulling wire and pull the probe with the wire.

PT3/8” (Pitch 3/8”)

Lamp

Small probe for 1" Fiber optic duct or non-directional boring tools

Replacement of batteries

Attach the Mini-probe to the Pulling eye

*Mini-probe doesn't have battery check function.

Check the transmission of the probe on the ground

before locating.

Attach the Mini-probe to the rodding tool

M10(mm) thread

- 30 -

Near the direct above the Probe, arrow

Away from the direct above the Probe,

Tracing a non-metallic drain or plastic pipe with the Probe.

Ex. Feed the Probe into the PVC pipe and locate

the blockage or collapse

Receiver Þ Press Frequency key to set 38kHz or 512Hz .

Set the detection mode to Probe mode.

Press Mode key three times

Press Frequency key

ＰＲＯＢＯＦＦ

Pipe & Cable mode

ＰＲＯＢＯＮ

Probe mode

Location measurement ( horizontal direction of the line)

Apply Peak mode. Horizontal direction

can not be detected with Null mode.

Use the Receiver right angle to the object

line like the drawing

Location measurement (Same direction in the line)

Peak mode.

Three sensitivity peaks appears. The biggest peak is the point direct above the Probe.

Null mode

indicates the direct above the Probe.

the receiving level flashes and the arrow indicates opposite direction.

Depth measurement Þ Press DEPTH key

* For the Sewer probe :

* If tracking a boring tool, Probe should be housed in a metal housing with slots milled in housing to allow signal to escape. Location is done as above.

OVER Þ Change the output to OUTPUT LOW.

LOW Þ Change the output to OUTPUT HIGH.

Depth

Current index is not displayed.

- 31 -

Keep more than

Metal fence

Footbridge

9. Precautions and applications (At the locating site)

1) Locating Work Near the Guardrail (In Indirect mode)

Object line

2) Metal Fences or Other Metallic Structures

1m/3.4ft away

Locating with the Receiver next to the guardrail will give an incorrect reading.

Locate just between the breaks of the

guardrails.

Keep more than

2m/7ft away

- 32 -

3) Street Light, Traffic-Control Sign

Keep more than

1m / 3.4ft away

4) Power-Transmission Tower

5)Telephone / Electric Power Poles

Keep more than 10m / 30ft away

Keep more than

1m / 3.4ft away

The transmitter can be

placed next to the pole.

Keep more than

1m / 3.4ft away

There is no interference

from Power lines above.

- 33 -

6) Heavy Traffic Flow

7) Railroads

Keep the receiver more

than 2m/7ft away

Locate when traffic has passed.

Within 1m / 3.4ft

Stop locating when a train is approaching

Keep the receiver more

than 2m/7ft away

- 34 -

Stop!

OK !

Call & Contact

TAKACHIHO SANGYO CO., LTD.

Tokyo office

19-6, 5-Chome, Shiba, Minato-Ku, Tokyo 108-0014 TEL 81-3-3453-4778

Head office & Factory in Nagoya, Japan

2007.10.1 495-082A

Takachiho Sangyo VerifierG2 MPL-H10S Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual